3M Soft Edge Foam Masking Tape PLUS makes jamb masking quick, easy and effective. Use this 21 mm width foam tape for jamb masking and other areas that need to be sealed during painting. This tape is the easy way to produce professional-looking paint transition lines.Get Professional-Looking Paint Transition Lines 3M Soft Edge Foam Masking Tape PLUS is a versatile masking product that can be applied in jamb areas. Designed to be applied to moving parts such as doors, hoods or deck lids. Our tape makes the jamb masking process fast and easy. The hollow tubular construction and the off-set adhesive reduces paint-to-adhesive contact for cleaner paint lines, ease of installation and a more universal size to fit variety of jamb configurations.. Our foam masking tape saves time, money and reduces the amount of materials needed to seal jambs, and helps to reduce rework due to unwanted tape lines. Easier Work and Better Results We made this masking foam so that painters could easily mask both wide and narrow jamb openings in one simple step. Our masking foam tape is much easier and quicker to use than using conventional masking tape and masking paper. The off-set adhesive keeps adhesive away from the paint edge and the tubular design easily conforms and seals openings. The result is improved soft edge masking performance and a high quality finish. A Jamb Masking Foam Made for Automotive Painting Our masking foam was specifically made to address real concerns expressed by automotive paint technicians. Its unique two-layer foam construction reduces the need for compounding and buffing by improving the paint edge quality. A tape liner provides protection to prevent adhesive contamination. The product has an adhesive that allows the tape to be repositioned if the first placement is not exactly correct.